Pyrolysis is 1) the chemical decomposition of organic materials through the application of heat that changes the chemical composition. The Pyrolysis is used to produce ethylene from petroleum (mainly Naphtha) that is heated to around 600 °C in the presence of steam (Steam Cracking); 2) a type of geochemical analysis in which a rock sample is subject to controlled heat.
Related Definitions in the Project: The Plant and Process Unit
